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New York, 1:26 PM
Mon Nov 30
20 posts in the last 24 hours

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  • posts about #coilgun more →

    Woodshop Class: Where Bolt-Action, Electromagnetic Coil Guns Are Made

    DIY Coil Gun with Laser Gun Sight Fires at 110km/h
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    Image of AmishJohn AmishJohn
    06/18/09

    In reply to Woodshop Class: Where Bolt-Action, Electromagnetic Coil Guns Are Made
    Here's a source for kits & suff:


    [www.amazing1.com]

     Reply
    AmishJohn was starred AmishJohn was unstarred
    Image of Curves Curves
    06/18/09

    In reply to Woodshop Class: Where Bolt-Action, Electromagnetic Coil Guns Are Made
    Gee, the only thing were we allowed to build were some lame duck shaped note holders. Believe it or not, back in the day, girls were not permitted to take "shop" and boys were not allowed to take "home ec" but for a week each year they switched. I sure as hell hope that has changed. Think of the male chefs and the female engineers we missed out on due to stupid gender sterotypes.
     Reply
    Curves was starred Curves was unstarred
    Image of FredicvsMaximvs FredicvsMaximvs
    06/18/09

    @Curves: Heh - I remember those days. I'm sure I would have benefitted from a home ec class myself, and many girls I know are fine carpenters and welders.


    Sadly, though, it's my understanding that many high schools have done away with shop classes due to liability concerns.

     Reply
    FredicvsMaximvs was starred FredicvsMaximvs was unstarred
    Image of Curves Curves
    06/18/09

    @FredicvsMaximvs: I am actually in favor of both being part of the cirriculum for all students. I need to know how to use tools, sew buttons back on and cook, as does anyone. These are life skills and should be taught to everyone, as should basic economic skills (ie-how to balance a checkbook and what credit cards can do to you).


    FYI-I aced both Home Ec and Shop and still have the lame duck shaped letter holder somewhere.

     Reply
    Curves was starred Curves was unstarred
    Image of Piker247 Piker247
    06/18/09

    @Curves:
    Maybe they could integrate slowly by letting the girls come into shop class once a week and clean up the place. ;)
     Reply
    Piker247 was starred Piker247 was unstarred
    Image of Curves Curves
    06/18/09

    @Piker247: Uh huh, and having the boys come to Home Ec once a week so the girls can feed them, sew for them and do their laundry as the natural order intended. ;)
     Reply
    Curves was starred Curves was unstarred
    Image of Jrsy Devil's Advocate® Jrsy Devil's Advocate®
    06/18/09

    In reply to Woodshop Class: Where Bolt-Action, Electromagnetic Coil Guns Are Made
    Quick, someone get the Governator to double-fist a pair of these and reenact a few scenes from Eraser...
     Reply
    Jrsy Devil's Advocate® was starred Jrsy Devil's Advocate® was unstarred
    Image of Shai Shai
    05/29/09

    In reply to DIY Coil Gun with Laser Gun Sight Fires at 110km/h
    The lightbulb is being used as a power resistor to quickly collapse the electric field of each coil as the projectile goes through it. Otherwise the coil would speed the slug up as it approached the center, and slow it down as it passed through the other side. Once the slug gets in the center one a coil, you need to dump the current out of the coil so the next coil in line can be switched on.


    It's a linear motor after all, you need to keep the magnetic field in front of the slug (rotor), pulling it along.


    With a rail gun, the projectile is a link in the circuit, so you just pour several thousand amps across the rails and let Lenz' Law take care of the rest.

     Reply
    Shai was starred Shai was unstarred
    Image of philibuster philibuster
    05/29/09

    @Shai: True story. But the drawback with the rail gun is that you inevitably burn up your rails and projectile. o well.
     Reply
    philibuster was starred philibuster was unstarred
    Image of IN THE FACE! IN THE FACE!
    05/29/09

    @philibuster: Is that the rail gun equivalent of throwing a fully discharged sidearm as a last ditch attack?
     Reply
    IN THE FACE! was starred IN THE FACE! was unstarred
    Image of nospamsam nospamsam
    05/29/09

    In reply to DIY Coil Gun with Laser Gun Sight Fires at 110km/h
    wow, you guys are pretty busy making fun of this guys toy. Stop trying to show everyone how smart you are and do something yourself that might be worth a picture and a few words...
    I think this guy's toy is awesome. He should patent it and sell it to mattel.
     Reply
    nospamsam was starred nospamsam was unstarred
    Image of IN THE FACE! IN THE FACE!
    05/29/09

    @nospamsam: Really? You call it a toy, yourself...


    Pot -> Kettle = Black.


    All the criticism is coming from the fact that people aren't sure if this is supposed to be a toy, or a semi-serious attempt at a proof of concept for a real weapon.

     Reply
    IN THE FACE! was starred IN THE FACE! was unstarred
    Image of incubushead incubushead
    05/29/09

    In reply to DIY Coil Gun with Laser Gun Sight Fires at 110km/h
    Theres a lot of wasted space in that enclosure. Miniturize man, Miniturize!
     Reply
    incubushead was starred incubushead was unstarred
    Image of IN THE FACE! IN THE FACE!
    05/29/09

    @incubushead: miniaturization is typically more relative to the size of the individual components rather than the case optimization as a whole...
     Reply
    IN THE FACE! was starred IN THE FACE! was unstarred
    Image of avconsumer2 avconsumer2
    05/29/09

    In reply to DIY Coil Gun with Laser Gun Sight Fires at 110km/h
    What the hell is fire metal?!
     Reply
    avconsumer2 was starred avconsumer2 was unstarred
    Image of IN THE FACE! IN THE FACE!
    05/29/09

    @avconsumer2: a typo
     Reply
    IN THE FACE! was starred IN THE FACE! was unstarred
    Image of GitEmSteveDave_DefinesTurgid GitEmSteveDave_DefinesTurgid
    05/29/09

    In reply to DIY Coil Gun with Laser Gun Sight Fires at 110km/h
    When do Arnold Schwarzenegger and Vanessa Williams show up w/some mafia guys?
     Reply
    GitEmSteveDave_DefinesTurgid was starred GitEmSteveDave_DefinesTurgid was unstarred
    Image of Jeff_McAwes0me Jeff_McAwes0me
    05/29/09

    In reply to DIY Coil Gun with Laser Gun Sight Fires at 110km/h
    Holy god that's a lot of capacitance.
     Reply
    Jeff_McAwes0me was starred Jeff_McAwes0me was unstarred
    Image of IN THE FACE! IN THE FACE!
    05/29/09

    @Jeff_McAwes0me: I dunno those caps look pretty incontinent.
     Reply
    IN THE FACE! was starred IN THE FACE! was unstarred
    Image of Jim Topoleski Jim Topoleski
    05/29/09

    In reply to DIY Coil Gun with Laser Gun Sight Fires at 110km/h
    unless you meant 110km/s thats rather unimpressive a speed.


    That it took him 40 hours is though, and it is neat looking.

     Reply
    Jim Topoleski was starred Jim Topoleski was unstarred
    Image of Heliophage Heliophage
    05/29/09

    @Jim Topoleski:


    Pretty slow, but it's good to be making progress toward more impressive mobile gauss weaponry.


    I wonder what it sounds like...

     Reply
    Heliophage was starred Heliophage was unstarred
    Image of Standbyon2 Standbyon2
    05/29/09

    @Jim Topoleski: Wow . . . 100.2 feet per second and 8 seconds to charge. I think I'll stick to throwing rocks.
     Reply
    Standbyon2 was starred Standbyon2 was unstarred
    Image of IN THE FACE! IN THE FACE!
    05/29/09

    @Standybyon2: BUT IT'S GOT BLUE LEDS!!!! OMFG!!! SOOOO PRETTY!!!


    /sarcasm

     Reply
    IN THE FACE! was starred IN THE FACE! was unstarred
    Image of secretmanofagent secretmanofagent
    05/29/09

    In reply to DIY Coil Gun with Laser Gun Sight Fires at 110km/h
    Only a little over 68 mph? We're in the US of A, we don't use the metric system boy.
     Reply
    secretmanofagent was starred secretmanofagent was unstarred
    Image of mshorty1292 mshorty1292
    05/29/09

    @secretmanofagent: I thought grams and ounces were metric... I use the metric all the time!
     Reply
    mshorty1292 was starred mshorty1292 was unstarred
    Image of NeoAkira NeoAkira
    05/29/09

    @mshorty1292:


    Grams is, ounces is not.

     Reply
    NeoAkira was starred NeoAkira was unstarred
    Image of ripfire ripfire
    05/29/09

    @secretmanofagent: Don't worry. The US is in a soft transition... (veerrry soft)
     Reply
    ripfire was starred ripfire was unstarred
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